making eyebrows fade from dye?

First, to do anything to your eyebrows you've got to be super careful.  You don't want to blind yourself.  Are you sure it doesn't look okay...but that you just aren't used to seeing it?  Dark eyebrows usually look good on people, especially if it goes with their haircolor.

If you want anything done chemically, you definitely should go back to the salon rather than risk doing it yourself...both to keep you from blinding yourself, and because if you get a screwy color on your eyebrows that will look much worse than it could possibly look now. 

If you want to try stuff at home, you can try mixing baking soda half and half with a little of your shampoo and washing them with it to try to fade it, or wash them with dishwashing liquid repeatedly (again, don't get any of those in your eyes!).   But frankly, if it was permanent dye I'm not sure that's going to do that much good. 

Whenever I've done my eyebrows, it faded in about 3 weeks, (probably due to eyebrows being so short they can replace themselves easily) so your best bet may just be to wait it out.